fix null #2945

Job	Run time
setup / Get and cache Dart dependencies	31s
setup / Compile sqlite3 for tests (ubuntu-latest)	6s
setup / Compile sqlite3 for tests (macos-latest)	9s
setup / Compile sqlite3 for tests (windows-latest)	12s
Documentation	4m 44s
drift package	2m 3s
drift_dev	6m 18s
sqlparser	36s
Integration tests for migration tooling	1m 5s
Integration tests	2m 39s
test_flutter (3.24)	2m 17s
Drift web unit tests, dart2wasm, chrome	3m 37s
Web integration tests	4m 16s
drift_web_ddc	4m 11s
Drift web unit tests, dart2wasm, firefox	4m 0s
	36m 44s

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